Well, now we have learned a little about how to describe waves
propagating through ``free'' space - dielectric media, possibly bounded
by a conducting surface. But how did they get there? Well, sit
yourselves down and I'll tell you. They were radiated there by accelerating, time dependent charge-current distributions!

And now we'll learn how...

Note well! This treatment differs substantially from Jackson's,
which actually kinda sucks. Ultimately it will be much simpler to
understand and is consistently developed. However, it really is the
same thing and one gets the same general expressions for the multipole
fields or potentials.